期刊文献+

铝合金搭接搅拌摩擦焊接头拉伸变形的数值模拟 被引量:6

Numerical simulation of tensile deformation on aluminum alloy FSW lap joints
下载PDF
导出
摘要 通过对2A12铝合金搭接搅拌摩擦焊接头的强度试验,研究了搭接搅拌摩擦焊接头的断裂行为,应用有限元方法对2A12铝合金板材搭接搅拌摩擦焊接头的拉伸力学响应进行了模拟计算,获得了搭接搅拌摩擦焊接头在外载作用下的局部应力应变分布与变形规律.结果表明,在搭接接头的搭接面上存在两个类裂纹的未焊接区域,塑性变形首先在搭接界面裂纹尖端区域发生,上板受拉侧裂纹尖端周围区域的塑性变形最大,是导致搭接搅拌摩擦焊接头上板的前进侧热影响区断裂的主要原因. Fracture behaviour of friction stir welded lap joints in 2A12 aluminum alloy was investigated by strength test.The distribution of stress and strain around the crack tip was calculated by finite element method under stretching forces.Analysis results show that plastic deformation occurs first at crack tip and the maximum plastic deformation is found in crack tip region in upper plate which lead to the fracture of heat-affected zone in upper plate.
出处 《焊接学报》 EI CAS CSCD 北大核心 2009年第2期57-60,共4页 Transactions of The China Welding Institution
关键词 铝合金 搭接 搅拌摩擦焊 接头强度 aluminum alloy lap joints friction stir welding joint strength
  • 相关文献

参考文献4

  • 1Chena Huabin, Yan Keng, Lin Tao, et al. The investigation of typical welding defects for 5456 aluminum alloy friction stir welds[J]. Materials Science and Engineering A, 2006, A433( 1 - 2) : 64 - 69.
  • 2Fersini D, Pirondi A. Fatigue behavior of Al2024-T3 friction stir welded lap joints[J]. Engineering Fracture Mechanics, 2006, 7( 10): 1 - 13.
  • 3Mats Ericsson, Lai Zhejin, Roll S. Fatigue properties of friction stir overlap welds[J]. International Journal of Fatigue, 2007 (29) : 57 - 68.
  • 4Cederqvist L, Reynolds A P. Properties of friction stir welded aluminum lap joints[M]. University of South Carolina, 2004.

同被引文献48

  • 1张彦富,柯黎明,孙德超,邢丽,刘鸽平.搅拌摩擦焊焊缝区温度分布及对材料流动的影响[J].南昌航空大学学报(自然科学版),2003,19(3):12-16. 被引量:21
  • 2张昭,陈金涛,张洪武.搅拌头尺寸变化对搅拌摩擦焊接的影响[J].材料工程,2006,34(1):19-23. 被引量:11
  • 3栾国红,胡煌辉,柴鹏.搅拌摩擦焊——新型列车制造新技术[J].电力机车与城轨车辆,2006,29(4):40-43. 被引量:31
  • 4Li Ying ,Trillo E A, Murr L E.Friction-stir welding of aluminum alloy 2024 to silver[J].Journal of Materials Science Letters, 2000(19): 1047-1051.
  • 5Thomas W M,Nicholas E D.Friction stir welding for the transportation Industrie~J].Materials&Design, 1997,18(4-6) : 269-273.
  • 6Arbegast W J,Fricfion stir welding after a decade of development[J]. Welding J, 2006(3) : 28.
  • 7李勋平.2219铝合金搅拌摩擦焊工艺及性能研究[D].南昌:南昌航空工业学院,2005.
  • 8Cederqvist L, Reynolds A P.Factors affecting the properties of friction stir welded aluminum lap joints[J].Welding Journal, 2001(12):281-288.
  • 9Cederqvist L, Reynolds A P.Properties of friction stir welded aluminum lap joints[J].2nd International Friction Stir Welding Symposium (2IFSWS), 2000 : 17-25.
  • 10Fersini D, Pirondi A.Fatigue behaviour of Al2024-T3 friction stir welded lap joints[J].Engineering Fracture Mechanics,2007 (74) : 468-480.

引证文献6

二级引证文献50

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部